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SUBORDINATED DEBENTURES (Details) - USD ($) $ in Thousands |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
May 06, 2022 | Sep. 30, 2015 | Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Jun. 15, 2022 | Dec. 31, 2021
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Subordinated notes payable, net |  |  | $ 200,300 |  | $ 200,300 |  |  | $ 197,100
Interest expense related to the subordinated debt |  |  | 3,300 | $ 2,200 | 5,500 | $ 4,100 |  |
Fixed to Floating Rate Subordinated Notes Due 2032 (the Notes) |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Aggregate principal amount issued | $ 160,000 |  |  |  |  |  |  |
Date after debt becomes callable | May 15, 2027 |  |  |  |  |  |  |
Fixed to Floating Rate Subordinated Notes Due 2032 (the Notes) | Prior to May 15, 2027 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Fixed annual interest rate | 5.00% |  |  |  |  |  |  |
Fixed to Floating Rate Subordinated Notes Due 2032 (the Notes) | On or after August 15, 2027 | SOFR |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Basis points added to benchmark rate | 218.00% |  |  |  |  |  |  |
Fixed to Floating Rate Subordinated Notes Due 2027 (4.50%) |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Fixed annual interest rate | 4.50% |  |  |  |  |  |  |
Net proceeds of the offering for the repayment |  |  |  |  |  |  | $ 115,000 |
Write-off of debt issuance costs | $ 740 |  |  |  |  |  |  |
Fixed to Floating Rate Subordinated Notes Due 2025 (5.25%) |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Fixed annual interest rate | 5.25% |  |  |  |  |  |  |
Net proceeds of the offering for the repayment |  |  | $ 40,000 |  | $ 40,000 |  |  |
Callable Notes After Ten Years | Subordinated Debentures |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Aggregate principal amount issued |  | $ 40,000 |  |  |  |  |  |
Fixed annual interest rate |  | 0.0575% |  |  |  |  |  |
Basis points added to benchmark rate |  | 3.45% |  |  |  |  |  |
Debt Instrument, Term |  | 10 years |  |  |  |  |  |
Debt instrument variable rate description |  | three-month LIBOR |  |  |  |  |  |

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